/*
* Ext JS Library 1.0.1
* Copyright(c) 2006-2007, Ext JS, LLC.
* licensing@extjs.com
*
* http://www.extjs.com/license
*/

var Example = {
  init : function(){
  // some data yanked off the web
  var myData = [
    ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],
    ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],
    ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],
    ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],
    ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],
    ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],
    ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],
    ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],
    ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],
    ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],
    ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],
    ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],
    ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],
    ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],
    ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],
    ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],
    ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],
    ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],
    ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],
    ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],
    ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],
    ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],
    ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],
    ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],
    ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],
    ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],
    ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],
    ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],
    ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am'],
    ['Walt Disney Company (The) (Holding Company)',29.89,0.24,0.81,'9/1 12:00am']
  ];

  var ds = new Ext.data.Store({
    proxy: new Ext.data.MemoryProxy(myData),
      reader: new Ext.data.ArrayReader({}, [
        {name: 'company'},
        {name: 'price', type: 'float'},
        {name: 'change', type: 'float'},
        {name: 'pctChange', type: 'float'},
        {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
      ])
    });
    ds.load();

    // example of custom renderer function
    function italic(value){
      return '<i>' + value + '</i>';
    }

    // example of custom renderer function
    function change(val){
      if(val > 0){
        return '<span style="color:green;">' + val + '</span>';
      }else if(val < 0){
        return '<span style="color:red;">' + val + '</span>';
      }
      return val;
    }

    // example of custom renderer function
    function pctChange(val){
      if(val > 0){
        return '<span style="color:green;">' + val + '%</span>';
      }else if(val < 0){
        return '<span style="color:red;">' + val + '%</span>';
      }
      return val;
    }

    // the DefaultColumnModel expects this blob to define columns. It can be extended to provide
    // custom or reusable ColumnModels
    var colModel = new Ext.grid.ColumnModel([
      {header: "Company", width: 160, sortable: true, locked:false, dataIndex: 'company'},
      {header: "Price", width: 75, sortable: true, renderer: Ext.util.Format.usMoney, dataIndex: 'price'},
      {id:'change',header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},
      {header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
      {header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
    ]);


    // create the Grid
    var grid = new Ext.grid.Grid('grid-example', {
      ds: ds,
      cm: colModel,
      autoExpandColumn: 'change'
    });

    var layout = Ext.BorderLayout.create({
      center: {
        margins:{left:3,top:3,right:3,bottom:3},
        panels: [new Ext.GridPanel(grid)]
      }
    }, 'grid-panel');

    grid.render();

    grid.getSelectionModel().selectFirstRow();

    //右键菜单
    function contextmenu(grid, rowIndex,e){
      e.preventDefault();
      e.stopEvent();
      var infoMenu = new Ext.menu.Item({
        id:'infoMenu',
        text: 'infoMenu',
        handler:function(){
          Ext.MessageBox.alert("info",Ext.util.JSON.encode(grid.dataSource.getAt(rowIndex).data));
        }
      });
      var menuList = [infoMenu];

      grid_menu = new Ext.menu.Menu({
        id: 'mainMenu',
        items: menuList
      });

      var coords = e.getXY();
      grid_menu.showAt([coords[0], coords[1]]);
    }
    grid.addListener('rowcontextmenu', contextmenu);
  }
};
Ext.onReady(Example.init, Example);
